公开(公告)号：US11912842B2

公开(公告)日：2024-02-27

申请号：US17254915

申请日：2018-06-29

申请人： Dow Global Technologies LLC

发明人： Haiyang Yu ,  Yunfeng Yang ,  Jozef J I Van Dun

IPC分类号： C08J9/232 ,  C08J9/18 ,  C08F297/08 ,  C08J9/00 ,  C08J9/12 ,  C08L53/00

CPC分类号： C08J9/232 ,  C08F297/083 ,  C08J9/0061 ,  C08J9/122 ,  C08J9/18 ,  C08L53/00 ,  C08J2203/06 ,  C08J2353/00 ,  C08J2453/00 ,  C08L2203/14 ,  C08L2205/025

摘要： The present disclosure provides a foam bead. The foam bead contains at least one of the following components: (A) a block composite; and/or (B) a crystalline block composite. The present disclosure also provides a sintered foam structure formed from a composition comprising at least one of the following components: (A) a block composite; and/or (B) a crystalline block composite.

公开(公告)号：US11912838B2

公开(公告)日：2024-02-27

申请号：US17292880

申请日：2019-11-26

申请人： ABU DHABI POLYMERS CO. LTD. (BOROUGE) L.L.C ,  BOREALIS AG

发明人： Subrata Das Kumar ,  Ashish Kumar ,  Shawn Khoo ,  Raghvendra Singh ,  Niraj Dixit

IPC分类号： C08F110/02 ,  C08F210/02 ,  C08J5/18 ,  C08F297/08 ,  C08L23/06 ,  C08L23/08 ,  C08F210/08 ,  C08F210/16

CPC分类号： C08J5/18 ,  C08F110/02 ,  C08F210/02 ,  C08F210/08 ,  C08F210/16 ,  C08F297/083 ,  C08L23/06 ,  C08L23/0815 ,  C08J2353/00 ,  C08F110/02 ,  C08F210/02 ,  C08F2500/04 ,  C08F2500/05

摘要： The present invention relates to a polyethylene composition comprising a base resin comprising a low molecular weight ethylene polymer component and a high molecular weight ethylene polymer component, wherein the high molecular weight ethylene polymer component has a higher weight average molecular weight than the low molecular weight ethylene polymer component, wherein the base resin has a density of at least 958.0 kg/m3, and the polyethylene composition a melt flow rate MFR2 (190° C., 2.16 kg) of from 0.50 to 0.80 g/10 min and a molecular weight distribution being the ratio of the weight average molecular weight and the number average molecular weight, Mw/Mn, of from 10.0 to 15.0, a process for producing said polyethylene composition, an article comprising said polyethylene composition and the use of said polyethylene composition for the production of a film.

公开(公告)号：US11873397B2

公开(公告)日：2024-01-16

申请号：US17292063

申请日：2019-11-14

申请人： BOREALIS AG

发明人： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Pauli Leskinen ,  Matthias Hoff

IPC分类号： C08L53/00 ,  C08F297/08 ,  C08J5/18

CPC分类号： C08L53/00 ,  C08F297/083 ,  C08J5/18 ,  C08F2420/00 ,  C08J2353/00 ,  C08J2423/06 ,  C08L2203/16 ,  C08L2205/03 ,  C08L2314/06

摘要： The invention provides a polyolefin composition comprising: (i) 55 to 95 wt % of a propylene butene random copolymer having an MFR2 of 1.0 to 20.0 g/10 min, a butene content of 1.5 to 8.0 wt % and prepared using a single site catalyst; and (ii) to 45 wt % of an ethylene based plastomer having a density of 860 to 905 kg/m3, an MFR2 of 0.3 to 30 g/10 min and prepared using a single site catalyst.

公开(公告)号：US20230416436A1

公开(公告)日：2023-12-28

申请号：US18039172

申请日：2021-11-25

申请人： KM Technologies GmbH

发明人： Adriano Malacchini ,  Giovanni Ricci ,  Giuseppe Leone

IPC分类号： C08F236/08 ,  C08F236/06 ,  C08F297/08 ,  C08F4/12 ,  C08F236/04

CPC分类号： C08F236/08 ,  C08F236/06 ,  C08F236/045 ,  C08F4/12 ,  C08F297/086

摘要： The invention relates to isoprene and butadiene and/or pentadiene stereoblock copolymers in which the different stereoregular blocks, joined to each other by means of a single junction point, have different structures and thermal properties. The invention also relates to a process for the preparation of the aforesaid copolymers which comprises the formation of stereoblocks in successive steps but in the presence of a single catalytic system obtained from cobalt dichloride, a phosphine and an organic compound of aluminum.

公开(公告)号：US20230303753A1

公开(公告)日：2023-09-28

申请号：US18022818

申请日：2021-08-25

申请人： LG Chem, Ltd.

发明人： Yun Kon Kim ,  Seul Ki Im ,  Hyun Mo Lee ,  Ji Hyun Park ,  Dong Min Kim ,  Mi Kyung Kim ,  Ki Soo Lee ,  Eun Ji Shin ,  Seok Pil Sa ,  Seung Jung Yu

IPC分类号： C08F297/08

CPC分类号： C08F297/086

摘要： The present invention relates to a method for preparing a polyolefin-polystyrene-based multiblock copolymer having a uniform structure and showing excellent physical properties through continuous type coordination polymerization and batch type anionic polymerization.

公开(公告)号：US11613601B2

公开(公告)日：2023-03-28

申请号：US16493562

申请日：2018-03-12

申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

发明人： Hidekazu Yamada ,  Masahiro Yanagisawa

IPC分类号： C08F297/08 ,  C08K3/34 ,  C08L23/10

摘要： A heterophasic propylene polymerization material, including a propylene polymer component (I) and an ethylene-α-olefin copolymer component (II), the heterophasic propylene polymerization material satisfying features (i) to (v): (i) the heterophasic propylene polymerization material contains a xylene-soluble content by 20 wt % or more; (ii) xylene-soluble content in the heterophasic propylene polymerization material has a limiting viscosity [η]CXS not less than 5 dL/g; (iii) a melt flow rate of the propylene polymer component (I) is 70 g/10 min or more; (iv) MFR of the heterophasic propylene polymerization material is not less than 5 g/10 min; and (v) the number of gels of 100 μm or more in diameter on a sheet for counting gels, including the heterophasic propylene polymerization material, is 1000 or less per 100 cm2 of the sheet.

公开(公告)号：US11535735B2

公开(公告)日：2022-12-27

申请号：US16978513

申请日：2019-03-07

申请人： MITSUI CHEMICALS, INC.

发明人： Atsushi Sakuma ,  Kazutaka Tsuru ,  Kenichiro Okamura

IPC分类号： C08L23/14 ,  C08F4/654 ,  C08F210/06 ,  C08F297/08

摘要： The purpose of the present invention is to provide a propylene-based block copolymer, the deposition thereof on the inner wall of the polymerization vessel having been sufficiently inhibited. The propylene-based block copolymer of the present invention has a flowability evaluation value of 40% or less, the value being calculated with the following equation wherein X (sec) is the number of seconds over which 100 g of the copolymer having ordinary temperature falls from a stainless-steel funnel having an inner diameter of 11.9 mm and Y (sec) is the number of seconds over which 100 g of the copolymer which has been held at 80° C. for 24 hours under a load of 10 kg falls from the funnel having an inner diameter of 11.9 mm. Flowability evaluation value (%)={(Y/X)−1}×100.

公开(公告)号：US11492452B2

公开(公告)日：2022-11-08

申请号：US16642897

申请日：2018-08-23

申请人： ZEON CORPORATION ,  NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY

发明人： Kousuke Isobe ,  Sadaharu Hashimoto ,  Atsushi Nozawa ,  Atsushi Noro ,  Takato Kajita ,  Yushu Matsushita

IPC分类号： C08F297/04 ,  C08J5/18 ,  C08F297/08

摘要： A main purpose of the present invention is to provide a multi-block copolymer composition having good elasticity and excellent stress relaxation properties, as well as small tension set. The present invention achieves the purpose by providing a multi-block copolymer composition obtained by a modification treatment, the composition including a block copolymer B formed by introducing a functional group capable of forming a non-covalent bond to a block copolymer A; wherein the block copolymer A includes a block copolymer A1 having a specific primary structure and a block copolymer A2 having a specific primary structure, and the mass ratio (A1/A2) of the block copolymer A1 and the block copolymer A2 is 100/0 to 50/50.

公开(公告)号：US11427670B2

公开(公告)日：2022-08-30

申请号：US16348376

申请日：2017-11-15

申请人： BOREALIS AG

发明人： Peter Roos ,  Joy Cheng ,  Mark Jeruzal ,  Qizheng Duo ,  Erik Eriksson

IPC分类号： C08F297/08 ,  C08K3/04

摘要： A polymer composition and a process for the production of this composition comprising a base resin is disclosed herein. The base resin includes a very high molecular weight component, a low molecular weight component, and a high molecular weight component having a weight average molecular weight higher than the weight average molecular weight of the low molecular weight component but lower than the weight average molecular weight of the very high molecular weight component. An amount of the very high molecular weight component in the base resin is 0.5 to 8 wt %. The very high molecular weight component has a viscosity average molecular weight of greater than 1100 kg/mol. The composition has FRR21/5 of equal to or greater than 38, a melt flow rate MFR21 of equal to or greater than 6.5 g/10 min and a viscosity at a shear stress of 747 Pa (eta747) of 450 to 3000 kPas.

公开(公告)号：US11306173B2

公开(公告)日：2022-04-19

申请号：US16321567

申请日：2017-07-19

申请人： Dow Global Technologies LLC

发明人： Endre Szuromi ,  Justin M. Virgill ,  Robert F. Wendel ,  Jeffrey C. Munro ,  Gary R. Marchand ,  Edmund M. Carnahan ,  Kim L. Walton

IPC分类号： C08F297/08

摘要： Semi-crystalline, thermoplastic polyolefin block copolymers comprising: (A) A first polyolefin A block comprising isotactic poly(1-butene) (iPB); (B) A polyolefin B block comprising an ethylene and/or alpha-olefin/1-butene copolymer or terpolymer; and (C) A second polyolefin A block comprising isotactic poly(1-butene) (iPB); the A and B blocks bonded to one another to form a block copolymer in which the first and second polyolefin A blocks are joined to and separated by the polyolefin B block. In one embodiment the polyolefin block copolymer is a BAB block copolymer.